James mcmaokin



/W/Zw.,

N. PETERS, PMoTmLITNDGRAPNER WASHKNGTON D C UNITED STATES PATENT OFFICE.

JAMES MCMAOKIN, OF NEW YORK, N. Y.

DEVICE FOR OPERATING WINDOW-BLINDS.

Specification of Letters Patent No. 17,938, dated August 4, 1857.

T0 aZZ whom t may concern:

Be it known that I, JAMES MCMAOKIN, of the city, county, and State of New York, have invented a new and improved device to be applied to window shutters and blinds whereby the same may be opened and closed from the inner side of the window without raising the sash; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure 1, is an inner side view of a blind attached to a window casing and having my improvement applied .to it. Fig. 2, is a transverse vertical section of ditto, taken in the line Fig. l. Fig. 3, is a horizontal section of ditto, taken in the line (2/) F1 g 1- Similar letters of reference indicate corresponding parts in the several figures.

My invention consists in attaching a jointed bar to the lower end of the blind or shutter and provided with a sliding catch as will be hereinafter fully shown and described, whereby the window or blind may be opened and closed from the inner side of the window, and secured in either an open or closed state, without raising the sash, and the device, whether the blind or shutter be opened or closed fully concealed from View, and inclosed within the sill of the casing.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents a window blind which is attached to the casing B by hinges C in the usual manner.

D represents the sill of the window casing.

E represents a jointed bar. This bar is formed of three pieces (a) (b) (c) cony nected together by joints (d), see more particularly Fig. 3. The outer end of the outermost piece (a) of the bar E is pivoted to the lower end of the blind near its lower hinge. The bar E passes through a mortise (e) made transversely through the sill D.

The innermost piece (c) of the bar E is somewhat larger than either of the other pieces and has a sliding plate (f) upon it. This plate (f) is secured to the piece (c) by screws (g) which pass into the piece (0) through slots in the plate. The end of the plate (f) is bent downward at a right to leave a ledge (7c) corresponding in pro` portions to the slot (i).

In the inner side of the sill D a longitudinal recess (Z) is made. This recess is encompassed by a metallic plate and a metal cover (n) is pivoted at one end to the sill D, as shown at (o).

When the blind is in a closed state as shown in Figs. l and 2, in black, the part (c) of the bar E is fitted within (the recess (Z) as shown by the dotted line in Figs. l and 3. The blind is opened by raising the cover (n) drawing out from the recess (Z) the piece (c) of the bar E, and turning it in line with the pieces (a) see Fig. 2, and then pressing the bar E outward or toward the blind. The blind by this means will be forced open and the outermost piece (a) will be allowed to turn o-n its pivot (CZ) so that the blind may be turned against the side of the building-the piece (b) however is prevented from working on its pivot (d) which connects it with piece (c) on account of .the slide the slot of which is shoved on the projection at the time the bar E is shoved forward to open the blind, it being understood that the hand is applied to the slide (f) both in opening and closing the blind. The plate therefore is in effect, or practically a catch or fastening preventing the blind from swinging to a certain extent which it would do provided the connection or joint (aZ) of the pieces (b) (c) were not made rigid.

As the bar E is drawn inward the plate of course is drawn back and the slot drawn olf from the ledge (7c), and when the bar E is drawn fully back, and the blind A closed the piece (c) is turned within the recess (Z) and the cover (n) closed over it. The blind is shown in an open state in red in Fig. 3.

The cover (n) is closed over the recess (Z) when the blind is both in an open and closed state. This is quite necessary for in winter much cold would enter an apartment Having thus described my invention what being applied to the blind A. and fitted I claim as new and desire to secure by Let- Within the sill D substantially as shown for ters Patent, isthe purpose set forth.

The bar E constructed of three pieces (a) J AMES MCMACKIN. 5 (b) (c) provided With the fastening formed Witnesses:

of the slotted plate (f) on the piece (o) and MICH. HUGHES, the ledge (7c) on the piece (b), the bar E JAMES F. BUCKLEY. 

